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Puzzles (3 cohencoins award for each match):

Puzzle G5X1Y: 999999999

Eitan1 (1179) +17
FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/Fqflyf1z"] [Date "2025.12.20"] [White "Eitan1"] [Black "Islomjon"] [Result "1-0"] [UTCDate "2025.12.20"] [UTCTime "00:04:50"] [WhiteElo "1179"] [BlackElo "1372"] [WhiteRatingDiff "+17"] [BlackRatingDiff "-20"] [BlackTitle "GM"] [Variant "Standard"] [TimeControl "420+2"] [ECO "C46"] [Opening "Four Knights Game"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 { C46 Four Knights Game } 4. d3?! { (0.33 → -0.20) Inaccuracy. Bb5 was best. } (4. Bb5 Bb4 5. O-O O-O 6. d3 Re8 7. Bg5 Bxc3 8. bxc3 d6 9. Bh4 Bd7 10. Nd2 h6) 4... Be7 5. Be3?! { (0.02 → -0.70) Inaccuracy. Nd5 was best. } (5. Nd5 O-O 6. Be2 Nxd5 7. exd5 Nd4 8. Nxd4 exd4 9. O-O c5 10. Bd2 d6 11. Bg4 Bf6) 5... O-O 6. Be2 Bb4 7. a3 Bxc3+ 8. bxc3 d6 9. O-O Bg4?! { (-0.19 → 0.76) Inaccuracy. d5 was best. } (9... d5) 10. h3 Bxf3 11. gxf3?? { (1.02 → -1.99) Blunder. Bxf3 was best. } (11. Bxf3) 11... d5 12. exd5? { (-1.49 → -3.22) Mistake. Re1 was best. } (12. Re1 Qd6) 12... Nxd5 13. c4? { (-3.00 → -4.88) Mistake. Qd2 was best. } (13. Qd2 Re8 14. Rfb1 b6 15. Bf1 Re6 16. Bg2 Rg6 17. f4 Qf6 18. f5 Qxf5 19. Kh2 Nxe3) 13... Nxe3 14. fxe3 Qg5+ 15. Kh1?! { (-4.86 → -6.82) Inaccuracy. Kf2 was best. } (15. Kf2 Ne7 16. Qe1 Nf5 17. Bd1 Qh4+ 18. Kg2 Qh6 19. Kf2 Qxh3 20. Rg1 Qh2+ 21. Kf1 Qh6) 15... Qxe3 16. Qb1 Ne7 17. Qb3 Nf5 18. Ra2 Ng3+ 19. Kg2 Nxe2 20. Qxb7 Nf4+ 21. Kg3 Nh5+ 22. Kg2 Nf4+ 23. Kg3 Ne2+ 24. Kg2 Qg5+ 25. Kf2 Nd4 26. Rb2 Qd2+ 27. Kg3?! { (-12.02 → Mate in 3) Checkmate is now unavoidable. Kg1 was best. } (27. Kg1 Ne2+ 28. Kh1 Qh6 29. Kg2 Nf4+ 30. Kf2 Qxh3 31. Ke1 Qg2 32. Qe4 Rab8 33. Rb5 Qxc2) 27... Qe2? { (Mate in 3 → -9.37) Lost forced checkmate sequence. Nf5+ was best. } (27... Nf5+ 28. Kg4 Qf4+ 29. Kh5 g6#) 28. Rfb1? { (-9.37 → Mate in 5) Checkmate is now unavoidable. Rf2 was best. } (28. Rf2) 28... Qxf3+?? { (Mate in 5 → -0.26) Lost forced checkmate sequence. Nf5+ was best. } (28... Nf5+ 29. Kg4 g6 30. c3 Qe3 31. h4 Qf4+ 32. Kh3 Qg3#) 29. Kh2?? { (-0.26 → -9.78) Blunder. Qxf3 was best. } (29. Qxf3 Nxf3 30. Kxf3 f5 31. Rb7 Rf7 32. Rb8+ Rxb8 33. Rxb8+ Rf8 34. Rb7 Rc8 35. Rxa7 Kf7) 29... Qf4+ 30. Kg2 Nf5 31. Qxa8 Rxa8?? { (-7.21 → Mate in 2) Checkmate is now unavoidable. Qg5+ was best. } (31... Qg5+ 32. Kf2) 32. Rb8+ Rxb8 33. Rxb8# { White wins by checkmate. } 1-0
Computer analysisMove timesCrosstableFEN & PGN
Reconnecting